package com.zhengqing.design.structure.decorator._02;

import java.math.BigDecimal;

/**
 * <p> 优惠券 </p>
 *
 * @author zhengqingya
 * @description
 * @date 2022/12/15 14:06
 */
public interface CouponCal {
    BigDecimal price();
}
